Searching for human bodies or other submerged items can be dangerous for divers due to factors such as strong currents, deep waters and low visibility. That's where the Tethys One underwater drone ...

Tethys, one of Saturn’s larger icy moons, vaguely resembles an eyeball staring off into space in this view from NASA’s Cassini spacecraft. The resemblance is due to the enormous crater, Odysseus, and ...

Three of Saturn’s moons — Tethys, Enceladus and Mimas — are captured in this group photo from NASA’s Cassini spacecraft. Tethys (660 miles or 1,062 kilometers across) appears above the rings, while ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Peek-a-boo, Tethys! NASA's Cassini spacecraft plays a cosmic game with one of Saturn's larger, ...